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Ling CW, Zhong H, Zeng FF, Chen G, Fu Y, Wang C, Zhang ZQ, Cao WT, Sun TY, Ding D, Liu YH, Dong HL, Jing LP, Ling W, Zheng JS, Chen YM. Cohort Profile: Guangzhou Nutrition and Health Study (GNHS): A Population-based Multi-omics Study. J Epidemiol 2024; 34:301-306. [PMID: 37813622 PMCID: PMC11078596 DOI: 10.2188/jea.je20230108] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND The Guangzhou Nutrition and Health Study (GNHS) aims to assess the determinants of metabolic disease in nutritional aspects, as well as other environmental and genetic factors, and explore possible biomarkers and mechanisms with multi-omics integration. METHODS The population-based sample of adults in Guangzhou, China (baseline: 40-83 years old; n = 5,118) was followed up about every 3 years. All are tracked via on-site follow-up and health information systems. We assessed detailed information on lifestyle factors, physical activities, dietary assessments, psychological health, cognitive function, body measurements, and muscle function. Instrument tests included dual-energy X-ray absorptiometry scanning, carotid artery and liver ultrasonography evaluations, vascular endothelial function evaluation, upper-abdomen and brain magnetic resonance imaging, and 14-day real-time continuous glucose monitoring tests. We also measured multi-omics, including host genome-wide genotyping, serum metabolome and proteome, gut microbiome (16S rRNA sequencing, metagenome, and internal transcribed spacer 2 sequencing), and fecal metabolome and proteome. RESULTS The baseline surveys were conducted from 2008 to 2015. Now, we have completed 3 waves. The 3rd and 4th follow-ups have started but have yet to end. A total of 5,118 participants aged 40-83 took part in the study. The median age at baseline was approximately 59.0 years and the proportion of female participants was about 69.4%. Among all the participants, 3,628 (71%) completed at least one on-site follow-up, with a median duration of 9.48 years. CONCLUSION The cohort will provide data that will be influential in establishing the role of nutrition in metabolic diseases with multi-omics.
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Affiliation(s)
- Chu-Wen Ling
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University
| | - Haili Zhong
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University
| | - Fang-Fang Zeng
- Department of Epidemiology, School of Medicine, Jinan University
| | - Gengdong Chen
- Department of Obstetrics, Foshan Institute of Fetal Medicine, Southern Medical University Affiliated Maternal & Child Health Hospital of Foshan
| | - Yuanqing Fu
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University
| | - Cheng Wang
- Department of Clinical Nutrition, Sun Yat-sen Memorial Hospital
| | - Zhe-Qing Zhang
- Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University
| | - Wen-Ting Cao
- International School of Public Health and One Health, Hainan Medical University
| | - Ting-Yu Sun
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University
| | - Ding Ding
- Global Health Research Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences
| | - Yan-Hua Liu
- Department of Nutrition, the First Affiliated Hospital of Zhengzhou University
| | - Hong-Li Dong
- Scientific Education Section and Department of Child Healthcare, Affiliated Maternity & Child Health Care Hospital of Nantong University
| | - Li-Peng Jing
- Department of Epidemiology, School of Public Health, Lanzhou University
| | - Wenhua Ling
- Department of Nutrition, School of Public Health, Sun Yat-sen University
| | - Ju-Sheng Zheng
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University
| | - Yu-Ming Chen
- Department of Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University
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Tyczyńska M, Hunek G, Szczasny M, Brachet A, Januszewski J, Forma A, Portincasa P, Flieger J, Baj J. Supplementation of Micro- and Macronutrients-A Role of Nutritional Status in Non-Alcoholic Fatty Liver Disease. Int J Mol Sci 2024; 25:4916. [PMID: 38732128 PMCID: PMC11085010 DOI: 10.3390/ijms25094916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/13/2024] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a condition in which the pathological cumulation of fat with coexisting inflammation and damage of hepatic cells leads to progressive dysfunctions of the liver. Except for the commonly well-known major causes of NAFLD such as obesity, dyslipidemia, insulin resistance, or diabetes, an unbalanced diet and imbalanced nutritional status should also be taken into consideration. In this narrative review, we summarized the current knowledge regarding the micro- and macronutrient status of patients suffering from NAFLD considering various diets and supplementation of chosen supplements. We aimed to summarize the knowledge indicating which nutritional impairments may be associated with the onset and progression of NAFLD at the same time evaluating the potential therapy targets that could facilitate the healing process. Except for the above-mentioned objectives, one of the most important aspects of this review was to highlight the possible strategies for taking care of NAFLD patients taking into account the challenges and opportunities associated with the micronutrient status of the patients. The current research indicates that a supplementation of chosen vitamins (e.g., vitamin A, B complex, C, or D) as well as chosen elements such as zinc may alleviate the symptoms of NAFLD. However, there is still a lack of sufficient data regarding healthy ranges of dosages; thus, further research is of high importance in this matter.
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Affiliation(s)
- Magdalena Tyczyńska
- Department of Correct, Clinical and Imaging Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland;
| | - Gabriela Hunek
- Chair and Department of Forensic Medicine, Medical University of Lublin, Jaczewskiego 8b, 20-090 Lublin, Poland; (G.H.); (A.B.)
| | - Martyna Szczasny
- Chair and Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland; (M.S.); (J.J.)
| | - Adam Brachet
- Chair and Department of Forensic Medicine, Medical University of Lublin, Jaczewskiego 8b, 20-090 Lublin, Poland; (G.H.); (A.B.)
| | - Jacek Januszewski
- Chair and Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland; (M.S.); (J.J.)
| | - Alicja Forma
- Chair and Department of Forensic Medicine, Medical University of Lublin, Jaczewskiego 8b, 20-090 Lublin, Poland; (G.H.); (A.B.)
| | - Piero Portincasa
- Clinica Medica “A. Murri”, Department of Biomedical Sciences & Human Oncology, University of Bari Medical School, 70124 Bari, Italy;
| | - Jolanta Flieger
- Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4A, 20-093 Lublin, Poland;
| | - Jacek Baj
- Chair and Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland; (M.S.); (J.J.)
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Park S, Shimokawa I. Influence of Adipokines on Metabolic Dysfunction and Aging. Biomedicines 2024; 12:873. [PMID: 38672227 PMCID: PMC11048512 DOI: 10.3390/biomedicines12040873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/12/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Currently, 30% of the global population is overweight or obese, with projections from the World Obesity Federation suggesting that this figure will surpass 50% by 2035. Adipose tissue dysfunction, a primary characteristic of obesity, is closely associated with an increased risk of metabolic abnormalities, such as hypertension, hyperglycemia, and dyslipidemia, collectively termed metabolic syndrome. In particular, visceral fat accretion is considered as a hallmark of aging and is strongly linked to higher mortality rates in humans. Adipokines, bioactive peptides secreted by adipose tissue, play crucial roles in regulating appetite, satiety, adiposity, and metabolic balance, thereby rendering them key players in alleviating metabolic diseases and potentially extending health span. In this review, we elucidated the role of adipokines in the development of obesity and related metabolic disorders while also exploring the potential of certain adipokines as candidates for longevity interventions.
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Affiliation(s)
- Seongjoon Park
- Department of Pathology, Graduate School of Biomedical Sciences, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan;
| | - Isao Shimokawa
- Department of Pathology, Graduate School of Biomedical Sciences, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan;
- SAGL, Limited Liability Company, 1-4-34, Kusagae, Chuo-ku, Fukuoka 810-0045, Japan
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Lee WK, Lam TKY, Tang HC, Ho TC, Wan HT, Wong CKC. PFOS-elicited metabolic perturbation in liver and fatty acid metabolites in testis of adult mice. Front Endocrinol (Lausanne) 2023; 14:1302965. [PMID: 38075064 PMCID: PMC10703039 DOI: 10.3389/fendo.2023.1302965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 11/02/2023] [Indexed: 12/18/2023] Open
Abstract
Introduction Multiple factors can contribute to sub-fecundity, including genetics, lifestyle, and environmental contaminants. PFASs are characterized as "forever chemicals" due to their ubiquitous contamination and their persistence in the environment, wildlife, and humans. Numerous studies have demonstrated that PFAS exposure adversely affects multiple bodily functions, including liver metabolism and gonadal function. It is unclear, however, how the disruption of hepatic fatty acid metabolism affects testicular function. Methods In this study, male mice were administered 0.3 and 3 μg/g body weight of PFOS for 21 days. Results Our data showed that PFOS exposure caused hepatic steatosis, as evidenced by significant increases in triglyceride levels, expression of ATP-citrate lyase, and fatty acid synthase, as well as fasting insulin levels. PFOS perturbed the expression levels of hepatokines, of which fibroblast growth factor-21 (Fgf-21), leukocyte cell-derived chemotaxin-2 (Lect-2), and retinol-binding protein-4 (Rbp-4) were significantly reduced, whereas angiopoietin-like 4 (Angptl4) was noticeably increased. While Rbp-4 and Fgf-21 are known to contribute to spermatogenesis and testosterone synthesis. In PFOS-exposed groups, testicular ATP, and testosterone decreased significantly with a significant increase in the expression of peroxisome proliferator-activated receptor-coactivator 1α. Mass spectrophotometry imaging revealed the localization of PFOS in testes, along with significant increases in fatty acid metabolites. These included arachidonic acid, dihomo-α-linolenic acid, dihomo-γ-linolenic acid, oxidized ceramide, diacylglycerol, phosphatidylcholine, and phosphatidylethanolamine, which are associated with inflammation and post-testicular causes of infertility. Discussion This study revealed potential links between PFOS-elicited changes in hepatic metabolism and their impacts on testicular biology. This study provides insights into alternative targets elicited by PFOS that can be used to develop diagnostic and therapeutic strategies for improving testicular dysfunction.
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Affiliation(s)
- Wang Ka Lee
- Croucher Institute for Environmental Sciences, Department of Biology, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Thomas Ka Yam Lam
- State Key Laboratory in Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Hiu Ching Tang
- Croucher Institute for Environmental Sciences, Department of Biology, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Tsz Chun Ho
- Croucher Institute for Environmental Sciences, Department of Biology, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
- State Key Laboratory in Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Hin Ting Wan
- Croucher Institute for Environmental Sciences, Department of Biology, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Chris Kong Chu Wong
- Croucher Institute for Environmental Sciences, Department of Biology, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
- State Key Laboratory in Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
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Kelty TJ, Dashek RJ, Arnold WD, Rector RS. Emerging Links between Nonalcoholic Fatty Liver Disease and Neurodegeneration. Semin Liver Dis 2023; 43:77-88. [PMID: 36764305 DOI: 10.1055/s-0043-1762585] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
The association between liver and brain health has gained attention as biomarkers of liver function have been revealed to predict neurodegeneration. The liver is a central regulator in metabolic homeostasis. However, in nonalcoholic fatty liver disease (NAFLD), homeostasis is disrupted which can result in extrahepatic organ pathologies. Emerging literature provides insight into the mechanisms behind the liver-brain health axis. These include the increased production of liver-derived factors that promote insulin resistance and loss of neuroprotective factors under conditions of NAFLD that increase insulin resistance in the central nervous system. In addition, elevated proinflammatory cytokines linked to NAFLD negatively impact the blood-brain barrier and increase neuroinflammation. Furthermore, exacerbated dyslipidemia associated with NAFLD and hepatic dysfunction can promote altered brain bioenergetics and oxidative stress. In this review, we summarize the current knowledge of the crosstalk between liver and brain as it relates to the pathophysiology between NAFLD and neurodegeneration, with an emphasis on Alzheimer's disease. We also highlight knowledge gaps and future areas for investigation to strengthen the potential link between NAFLD and neurodegeneration.
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Affiliation(s)
- Taylor J Kelty
- Department of Biomedical Sciences, University of Missouri - Columbia, Columbia, Missouri
- Department of Nutrition and Exercise Physiology, University of Missouri - Columbia, Columbia, Missouri
- NextGen Precision Health, University of Missouri - Columbia, Columbia, Missouri
| | - Ryan J Dashek
- Department of Biomedical Sciences, University of Missouri - Columbia, Columbia, Missouri
- NextGen Precision Health, University of Missouri - Columbia, Columbia, Missouri
- Comparative Medicine Program, University of Missouri - Columbia, Columbia, Missouri
| | - W David Arnold
- NextGen Precision Health, University of Missouri - Columbia, Columbia, Missouri
- Physical Medicine and Rehabilitation, University of Missouri - Columbia, Columbia, Missouri
| | - R Scott Rector
- Department of Nutrition and Exercise Physiology, University of Missouri - Columbia, Columbia, Missouri
- NextGen Precision Health, University of Missouri - Columbia, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Missouri - Columbia, Columbia, Missouri
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Hu R, Yang X, He X, Song G. The relationship between NAFLD and retinol-binding protein 4 - an updated systematic review and meta-analysis. Lipids Health Dis 2023; 22:8. [PMID: 36670387 PMCID: PMC9862531 DOI: 10.1186/s12944-022-01771-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/31/2022] [Indexed: 01/22/2023] Open
Abstract
PURPOSE Retinol-binding protein 4 (RBP4) has been considered to be related to metabolic related diseases, such as hyperuricemia, obesity, and diabetes mellitus. However, whether nonalcoholic fatty liver disease (NAFLD) is related to RBP4 is unclear. Previous studies on the relationship between NAFLD and RBP4 levels have yielded inconsistent results. Hence, this meta-analysis was aimed to clarify whether circulating RBP4 levels are in relation to the risk of NAFLD. METHODS A meta-analysis was performed by applying observational studies to evaluate circulating RBP4 levels and NAFLD. Eligible studies published up to September 23, 2022, were searched in Embase, PubMed, and Cochrane databases. RESULTS In this study, 17 cross-sectional studies involving 8423 participants were included. Results from a random effects model showed that circulating RBP4 levels were higher in NAFLD patients than non-NAFLD (standardized mean difference (SMD) 0.28; 95% confidence intervals (CI): 0.11-0.46, I2: 89.8%). This association was confirmed in the Yellow race. However, no significant association was noted in the Caucasian race. After excluding the morbidly obese Population from the weight loss study (n = 2), the results of the comparison remained largely unchanged (SMD 0.28; 95% CI: 0.10-0.47, I2: 90.8%). Remarkable publication bias was not found. Although considerable heterogeneity was observed among the studies, no potential sources of heterogeneity were found in the subgroup analysis. Diagnostic methods for NAFLD were determined to be a potential source of statistical heterogeneity in meta-regression. CONCLUSION The findings provide evidence that NAFLD patients exhibit higher levels of circulating RBP4 compared with controls, but high heterogeneity was observed. Thus, a high RBP4 level is probably a potential risk factor for NAFLD. To confirm the causal link between NAFLD and RBP4 level of causality, further prospective cohort studies are needed.
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Affiliation(s)
- Rui Hu
- grid.256883.20000 0004 1760 8442Department of Internal Medicine, Hebei Medical University, Shijiazhuang, 050017 Hebei People’s Republic of China ,grid.440208.a0000 0004 1757 9805Endocrinology Department, Hebei General Hospital, Shijiazhuang, 050051 Hebei People’s Republic of China
| | - Xiaoyue Yang
- grid.256883.20000 0004 1760 8442Department of Internal Medicine, Hebei Medical University, Shijiazhuang, 050017 Hebei People’s Republic of China ,grid.440208.a0000 0004 1757 9805Endocrinology Department, Hebei General Hospital, Shijiazhuang, 050051 Hebei People’s Republic of China
| | - Xiaoyu He
- grid.256883.20000 0004 1760 8442Department of Internal Medicine, Hebei Medical University, Shijiazhuang, 050017 Hebei People’s Republic of China ,grid.440208.a0000 0004 1757 9805Endocrinology Department, Hebei General Hospital, Shijiazhuang, 050051 Hebei People’s Republic of China
| | - Guangyao Song
- Endocrinology Department, Hebei General Hospital, Shijiazhuang, 050051, Hebei, People's Republic of China.
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Le MH, Yeo YH, Li X, Li J, Zou B, Wu Y, Ye Q, Huang DQ, Zhao C, Zhang J, Liu C, Chang N, Xing F, Yan S, Wan ZH, Tang NSY, Mayumi M, Liu X, Liu C, Rui F, Yang H, Yang Y, Jin R, Le RHX, Xu Y, Le DM, Barnett S, Stave CD, Cheung R, Zhu Q, Nguyen MH. 2019 Global NAFLD Prevalence: A Systematic Review and Meta-analysis. Clin Gastroenterol Hepatol 2022; 20:2809-2817.e28. [PMID: 34890795 DOI: 10.1016/j.cgh.2021.12.002] [Citation(s) in RCA: 260] [Impact Index Per Article: 130.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/25/2021] [Accepted: 12/02/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The increasing rates of obesity and type 2 diabetes mellitus may lead to increased prevalence of nonalcoholic fatty liver disease (NAFLD). We aimed to determine the current and recent trends on the global and regional prevalence of NAFLD. METHODS Systematic search from inception to March 26, 2020 was performed without language restrictions. Two authors independently performed screening and data extraction. We performed meta-regression to determine trends in NAFLD prevalence. RESULTS We identified 17,244 articles from literature search and included 245 eligible studies involving 5,399,254 individuals. The pooled global prevalence of NAFLD was 29.8% (95% confidence interval [CI], 28.6%-31.1%); of these, 82.5% of included articles used ultrasound to diagnose NAFLD, with prevalence of 30.6% (95% CI, 29.2%-32.0%). South America (3 studies, 5716 individuals) and North America (4 studies, 18,236 individuals) had the highest NAFLD prevalence at 35.7% (95% CI, 34.0%-37.5%) and 35.3% (95% CI, 25.4%-45.9%), respectively. From 1991 to 2019, trend analysis showed NAFLD increased from 21.9% to 37.3% (yearly increase of 0.7%, P < .0001), with South America showing the most rapid change of 2.7% per year, followed by Europe at 1.1%. CONCLUSIONS Despite regional variation, the global prevalence of NAFLD is increasing overall. Policy makers must work toward reversing the current trends by increasing awareness of NAFLD and promoting healthy lifestyle environments.
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Affiliation(s)
- Michael H Le
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California
| | - Yee Hui Yeo
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California; Division of General Internal Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Xiaohe Li
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California; Division of Infectious Disease, The Third People's Hospital of Shenzhen, Shenzhen, China
| | - Jie Li
- Department of Infectious Disease, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Biyao Zou
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California; Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California
| | - Yuankai Wu
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California; Department of Infectious Diseases, the Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qing Ye
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California; The Third Central Clinical College of Tianjin Medical University, Tianjin; Department of Hepatology of The Third Central Hospital of Tianjin; Tianjin Key Laboratory of Artificial Cells, Tianjin, China
| | - Daniel Q Huang
- Department of Medicine, Yong Loo Lin School of Medicine and Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore
| | - Changqing Zhao
- Department of Cirrhosis, Institute of Liver Disease, Shuguang Hospital, Shanghai University of T.C.M., Shanghai, China
| | - Jie Zhang
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Chenxi Liu
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Na Chang
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Feng Xing
- Department of Cirrhosis, Institute of Liver Disease, Shuguang Hospital, Shanghai University of T.C.M., Shanghai, China
| | - Shiping Yan
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Zi Hui Wan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Natasha Sook Yee Tang
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Maeda Mayumi
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California
| | - Xinting Liu
- Medical School of Chinese People's Liberation Army, Beijing, and Department of Pediatrics, the First Medical Center, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Chuanli Liu
- Department of Infectious Disease, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Fajuan Rui
- Department of Infectious Disease, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Hongli Yang
- Department of Infectious Disease, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Yao Yang
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Ruichun Jin
- Jining Medical University, Jining, Shandong, China
| | - Richard H X Le
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California
| | - Yayun Xu
- Department of Infectious Disease, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - David M Le
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California
| | - Scott Barnett
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California
| | | | - Ramsey Cheung
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California; Division of Gastroenterology and Hepatology, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
| | - Qiang Zhu
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong, China
| | - Mindie H Nguyen
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California; Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California.
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Nascè A, Gariani K, Jornayvaz FR, Szanto I. NADPH Oxidases Connecting Fatty Liver Disease, Insulin Resistance and Type 2 Diabetes: Current Knowledge and Therapeutic Outlook. Antioxidants (Basel) 2022; 11:antiox11061131. [PMID: 35740032 PMCID: PMC9219746 DOI: 10.3390/antiox11061131] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/30/2022] [Accepted: 06/03/2022] [Indexed: 12/15/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD), characterized by ectopic fat accumulation in hepatocytes, is closely linked to insulin resistance and is the most frequent complication of type 2 diabetes mellitus (T2DM). One of the features connecting NAFLD, insulin resistance and T2DM is cellular oxidative stress. Oxidative stress refers to a redox imbalance due to an inequity between the capacity of production and the elimination of reactive oxygen species (ROS). One of the major cellular ROS sources is NADPH oxidase enzymes (NOX-es). In physiological conditions, NOX-es produce ROS purposefully in a timely and spatially regulated manner and are crucial regulators of various cellular events linked to metabolism, receptor signal transmission, proliferation and apoptosis. In contrast, dysregulated NOX-derived ROS production is related to the onset of diverse pathologies. This review provides a synopsis of current knowledge concerning NOX enzymes as connective elements between NAFLD, insulin resistance and T2DM and weighs their potential relevance as pharmacological targets to alleviate fatty liver disease.
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Affiliation(s)
- Alberto Nascè
- Service of Endocrinology, Diabetes, Nutrition and Patient Therapeutic Education, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205 Geneva, Switzerland; (A.N.); (K.G.)
| | - Karim Gariani
- Service of Endocrinology, Diabetes, Nutrition and Patient Therapeutic Education, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205 Geneva, Switzerland; (A.N.); (K.G.)
- Department of Medicine, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva Medical School, 1211 Geneva, Switzerland
| | - François R. Jornayvaz
- Service of Endocrinology, Diabetes, Nutrition and Patient Therapeutic Education, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205 Geneva, Switzerland; (A.N.); (K.G.)
- Department of Medicine, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva Medical School, 1211 Geneva, Switzerland
- Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
- Correspondence: (F.R.J.); (I.S.)
| | - Ildiko Szanto
- Service of Endocrinology, Diabetes, Nutrition and Patient Therapeutic Education, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205 Geneva, Switzerland; (A.N.); (K.G.)
- Department of Medicine, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva Medical School, 1211 Geneva, Switzerland
- Correspondence: (F.R.J.); (I.S.)
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Non-alcoholic fatty liver disease: a multi-system disease influenced by ageing and sex, and affected by adipose tissue and intestinal function. Proc Nutr Soc 2022; 81:146-161. [DOI: 10.1017/s0029665121003815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In recent years, a wealth of factors are associated with increased risk of developing non-alcoholic fatty liver disease (NAFLD) and NAFLD is now thought to increase the risk of multiple extra-hepatic diseases. The aim of this review is first to focus on the role of ageing and sex as key, poorly understood risk factors in the development and progression of NAFLD. Secondly, we aim to discuss the roles of white adipose tissue (WAT) and intestinal dysfunction, as producers of extra-hepatic factors known to further contribute to the pathogenesis of NAFLD. Finally, we aim to summarise the role of NAFLD as a multi-system disease affecting other organ systems beyond the liver. Both increased age and male sex increase the risk of NAFLD and this may be partly driven by alterations in the distribution and function of WAT. Similarly, changes in gut microbiota composition and intestinal function with ageing and chronic overnutrition are likely to contribute to the development of NAFLD both directly (i.e. by affecting hepatic function) and indirectly via exacerbating WAT dysfunction. Consequently, the presence of NAFLD significantly increases the risk of various extra-hepatic diseases including CVD, type 2 diabetes mellitus, chronic kidney disease and certain extra-hepatic cancers. Thus changes in WAT and intestinal function with ageing and chronic overnutrition contribute to the development of NAFLD – a multi-system disease that subsequently contributes to the development of other chronic cardiometabolic diseases.
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Karamfilova V, Gateva A, Alexiev A, Zheleva N, Velikova T, Ivanova-Boyanova R, Ivanova R, Cherkezov N, Kamenov Z, Mateva L. The association between retinol-binding protein 4 and prediabetes in obese patients with nonalcoholic fatty liver disease. Arch Physiol Biochem 2022; 128:217-222. [PMID: 31588816 DOI: 10.1080/13813455.2019.1673429] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
CONTEXT Retinol-binding protein 4 (RBP4) is associated with visceral fat and insulin resistance (IR) in obesity, type 2 diabetes mellitus (T2DM) and nonalcoholic fatty liver disease (NAFLD), but some of these data remain controversial. OBJECTIVE This study evaluated the relationship between serum RBP4 levels and prediabetes in obese patients with NAFLD. METHODS A total of 79 obese NAFLD patients without (n = 41) and with prediabetes (n = 38) were included. Serum RBP4 was measured using ELISA method. RESULTS Higher RBP4 serum levels were observed in patients with prediabetes, metabolic syndrome (MetS), or dyslipidaemia. There was correlation between RBP4 levels and visceral adiposity index (VAI), glucose, insulin, HOMA-IR, and Quicki index. RBP4 ≥ 61 mcg/ml have about 3.5-fold higher risk of prediabetes (OR 3.544, 95% CI 1.385-9.072, p=.008), and RBP4 ≥ 55 mcg/ml increased the risk for MetS approximately 3.1 times. CONCLUSIONS RBP4 is associated with increased risk for prediabetes and MetS in obese patients with NAFLD.
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Affiliation(s)
- Vera Karamfilova
- Department of Internal Medicine, Clinic of Endocrinology, University Hospital "Alexandrovska", Medical University - Sofia, Sofia, Bulgaria
| | - Antoaneta Gateva
- Department of Internal Medicine, Clinic of Endocrinology, University Hospital "Alexandrovska", Medical University - Sofia, Sofia, Bulgaria
| | - Asen Alexiev
- Department of Internal Medicine, Clinic of Gastroenterology, University Hospital "St. Ivan Rilski", Medical University - Sofia, Sofia, Bulgaria
| | - Nadejda Zheleva
- Department of Internal Medicine, Clinic of Gastroenterology, University Hospital "St. Ivan Rilski", Medical University - Sofia, Sofia, Bulgaria
| | - Tsvetelina Velikova
- Department of Clinical Immunology, University Hospital Lozenetz, Sofia, Bulgaria
| | - Radina Ivanova-Boyanova
- Department of Endocrinology, Laboratory of Clinical Pathology, University Hospital "St. Ivan Rilski", Medical University - Sofia, Sofia, Bulgaria
| | - Raya Ivanova
- Department of Internal Medicine, Clinic of Cardiology, University Hospital "Alexandrovska", Medical University - Sofia, Sofia, Bulgaria
| | - Nikolay Cherkezov
- Medical student, Medical Faculty, Medical University, Sofia, Bulgaria
| | - Zdravko Kamenov
- Department of Internal Medicine, Clinic of Endocrinology, University Hospital "Alexandrovska", Medical University - Sofia, Sofia, Bulgaria
| | - Ludmila Mateva
- Department of Internal Medicine, Clinic of Gastroenterology, University Hospital "St. Ivan Rilski", Medical University - Sofia, Sofia, Bulgaria
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Zhang ZH, Ke JF, Lu JX, Liu Y, Wang AP, Li LX. Serum Retinol-Binding Protein Levels Are Associated with Nonalcoholic Fatty Liver Disease in Chinese Patients with Type 2 Diabetes Mellitus: A Real-World Study. Diabetes Metab J 2022; 46:129-139. [PMID: 34372627 PMCID: PMC8831806 DOI: 10.4093/dmj.2020.0222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/20/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The association of serum retinol-binding protein (RBP) levels with nonalcoholic fatty liver disease (NAFLD) remains controversial. Furthermore, few studies have investigated their relationship in type 2 diabetes mellitus (T2DM) patients. Therefore, the aim of the present study was to explore the association between serum RBP levels and NAFLD in Chinese inpatients with T2DM. METHODS This cross-sectional, real-world study included 2,263 Chinese T2DM inpatients. NAFLD was diagnosed by abdominal ultrasonography. The subjects were divided into four groups based on RBP quartiles, and clinical characteristics were compared among the four groups. The associations of both RBP levels and quartiles with the presence of NAFLD were also analyzed. RESULTS After adjustment for sex, age, and diabetes duration, there was a significant increase in the prevalence of NAFLD from the lowest to the highest RBP quartiles (30.4%, 40.0%, 42.4%, and 44.7% for the first, second, third, and fourth quartiles, respectively, P<0.001 for trend). Fully adjusted multiple logistic regression analysis revealed that both increased RBP levels (odds ratio, 1.155; 95% confidence interval, 1.012 to 1.318; P=0.033) and quartiles (P=0.014 for trend) were independently associated with the presence of NAFLD in T2DM patients. CONCLUSION Increased serum RBP levels were independently associated with the presence of NAFLD in Chinese T2DM inpatients. Serum RBP levels may be used as one of the indicators to assess the risk of NAFLD in T2DM patients.
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Affiliation(s)
- Zhi-Hui Zhang
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - Jiang-Feng Ke
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - Jun-Xi Lu
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
| | - Yun Liu
- Department of Information, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Department of Medical Information, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China
| | - Ai-Ping Wang
- Department of Endocrinology, Eastern Theater Air Force Hospital of PLA, Nanjing, China
| | - Lian-Xi Li
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai, China
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12
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Hong GB, Shao XF, Li JM, Zhou Q, Ke XS, Gao PC, Li XL, Ning J, Chen HS, Xiao H, Xiong CX, Zou H. Associaton of Retinol Binding Protein 4 (RBP4) Levels With Hyperuricemia: A Cross-Sectional Study in a Chinese Population. Front Endocrinol (Lausanne) 2022; 13:879755. [PMID: 35846279 PMCID: PMC9276999 DOI: 10.3389/fendo.2022.879755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/12/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND There are few studies on predictive biomarkers for hyperuricemia, and the predictive value of these biomarkers tends to be poor. Additionally, no reports have described the predictive value of retinol binding protein 4 (RBP4) for hyperuricemia. PURPOSE This study was performed to evaluate the value of RBP4 for predicting the risk of hyperuricemia in a general population, determine whether RBP4 could be used alone or in combination with other factors to predict the risk of hyperuricemia in the general population, and establish an optimum predictive model. METHODS We conducted a population-based cross-sectional survey in 2018, involving a questionnaire, physical examination, and laboratory testing. We enrolled 2303 individuals by stratified random sampling, and 2075 were included in the data analysis after applying the eligibility criteria. RESULTS Serum RBP4 level had a highly significant association with hyperuricemia (P<0.001). After adjusting for potential confounders, logistic regression indicated that the risk of hyperuricemia was highest in the highest RBP4 quartile (odds ratio: 7.9, 95% confidence interval [CI]: 4.18-14.84, compared to the lowest quartile). The area under the receiver operating characteristic (ROC) curve (AUC) for RBP4 was 0.749 (95% CI: 0.725-0.774, P<0.001), which was higher than that for all the other predictors assessed. The optimum model for predicting hyperuricemia in the general population consisted of RBP4, sex (male), body mass index, serum creatinine, high-sensitivity C-reactive protein, fasting blood glucose, insulin, and alcohol consumption. The AUC was 0.804 (95% CI: 0.782-0.826, P<0.001). CONCLUSIONS RBP4 is strongly associated with hyperuricemia, and its predictive value was higher than that of traditional predictors.
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Affiliation(s)
- Guo-bao Hong
- Department of Nephrology, The Affiliated Shunde Hospital of Jinan University, Foshan, China
- Department of Nephrology, Nanhai Distric People's Hospital of Foshan, Foshan, China
| | - Xiao-fei Shao
- Department of Nephrology, Institute of Nephrology and Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Jia-min Li
- Department of Nephrology, Nanhai Distric People's Hospital of Foshan, Foshan, China
| | - Qin Zhou
- Department of Nephrology, Institute of Nephrology and Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Xiao-Su Ke
- Department of Nephrology, Guangdong Electric Power Hospital, Guangzhou, China
| | - Pei-Chun Gao
- Nanjing CR Medicon Pharmaceutical Technology Co., Ltd, Nanjing, China
| | - Xiao-Lin Li
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, China
| | - Jing Ning
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, China
| | - Hai-Shan Chen
- Department of Nephrology, Institute of Nephrology and Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Hua Xiao
- Department of Nephrology, Institute of Nephrology and Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Chong-Xiang Xiong
- Department of Nephrology, The First Affiliated of Dongguan, Guangdong Medical University, Dongguan, China
- *Correspondence: Hequn Zou, ; Chong-Xiang Xiong,
| | - Hequn Zou
- Department of Nephrology, South China Hospital of Shenzhen University, Shenzhen, China
- *Correspondence: Hequn Zou, ; Chong-Xiang Xiong,
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Li H, He X, Wen S, Yang L, Chen Q, Li Y, Huang S, Huang X, Wan F, He M. Optimised expression and purification of RBP4 and preparation of anti-RBP4 monoclonal antibody. FEBS Open Bio 2021; 12:430-442. [PMID: 34889069 PMCID: PMC8804599 DOI: 10.1002/2211-5463.13349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 10/26/2021] [Accepted: 12/09/2021] [Indexed: 11/08/2022] Open
Abstract
The expression level of retinol-binding protein 4 (RBP4) protein is closely related to liver damage and plays an important role in the diagnosis and prognosis of cancer. However, the preparation of anti-RBP4 mAb or exploration on the application of anti-RBP4 mAb has not been reported thus far. In the present study, we constructed a pET30a-RBP4 recombinant vector, used E. coli BL21 (DE3) as the vector to express the RBP4 recombinant protein and prepared anti-RBP4 mAb using hybridoma technology. We performed immunohistochemical analysis on hepatocellular carcinoma (HCC) and adjacent tissues by using this anti-RBP4 mAb. In addition to the high-purity RBP4 recombinant protein, we successfully developed the anti-RBP4 mAb with high affinity and specificity; it binds to natural RBP4 protein and is suitable for immunohistochemical analysis.
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Affiliation(s)
- Hui Li
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Xiao He
- School of Public Health, Guilin Medical School, China
| | - Sha Wen
- Laboratory Animal Center, Guangxi Medical University, Nanning, China
| | - Lichao Yang
- School of Public Health, Guangxi Medical University, Nanning, China.,Laboratory Animal Center, Guangxi Medical University, Nanning, China
| | - Qiuli Chen
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Yasi Li
- Department of Public Health Sciences, College of Medicine, Pennsylvania State University, Hershey, PA, USA
| | - Shiping Huang
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Xuejing Huang
- Laboratory Animal Center, Guangxi Medical University, Nanning, China
| | - Fengjie Wan
- School of Public Health, Guangxi Medical University, Nanning, China
| | - Min He
- School of Public Health, Guangxi Medical University, Nanning, China.,Laboratory Animal Center, Guangxi Medical University, Nanning, China.,Ministry of Education, Key Laboratory of High-Incidence-Tumor Prevention & Treatment (Guangxi Medical University, Nanning, China
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Aguiar AJFC, de Queiroz JLC, Santos PPA, Camillo CS, Serquiz AC, Costa IS, Oliveira GS, Gomes AFT, Matias LLR, Costa ROA, Passos TS, Morais AHA. Beneficial Effects of Tamarind Trypsin Inhibitor in Chitosan-Whey Protein Nanoparticles on Hepatic Injury Induced High Glycemic Index Diet: A Preclinical Study. Int J Mol Sci 2021; 22:9968. [PMID: 34576130 PMCID: PMC8470918 DOI: 10.3390/ijms22189968] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 12/12/2022] Open
Abstract
Several studies have sought new therapies for obesity and liver diseases. This study investigated the effect of the trypsin inhibitor isolated from tamarind seeds (TTI), nanoencapsulated in chitosan and whey protein isolate (ECW), on the liver health status of the Wistar rats fed with a high glycemic index (HGLI) diet. The nanoformulations without TTI (CW) and ECW were obtained by nanoprecipitation technique, physically and chemically characterized, and then administered to the animals. The adult male Wistar rats (n = 20) were allocated to four groups: HGLI diet + water; standard diet + water; HGLI diet + ECW (12.5 mg/kg); and HGLI diet + CW (10.0 mg/kg), 1 mL per gagave, for ten days. They were evaluated using biochemical and hematological parameters, Fibrosis-4 Index for Liver Fibrosis (FIB-4), AST to Platelet Ratio Index (APRI) scores, and liver morphology. Both nanoparticles presented spherical shape, smooth surface, and nanometric size [120.7 nm (ECW) and 136.4 nm (CW)]. In animals, ECW reduced (p < 0.05) blood glucose (17%), glutamic oxalacetic transaminase (39%), and alkaline phosphatase (24%). Besides, ECW reduced (p < 0.05) APRI and FIB-4 scores and presented a better aspect of hepatic morphology. ECW promoted benefits over a liver injury caused by the HGLI diet.
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Affiliation(s)
- Ana J. F. C. Aguiar
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil; (A.J.F.C.A.); (J.L.C.d.Q.); (I.S.C.); (L.L.R.M.); (R.O.A.C.)
| | - Jaluza L. C. de Queiroz
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil; (A.J.F.C.A.); (J.L.C.d.Q.); (I.S.C.); (L.L.R.M.); (R.O.A.C.)
| | - Pedro P. A. Santos
- Structural and Functional Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil; (P.P.A.S.); (C.S.C.)
| | - Christina S. Camillo
- Structural and Functional Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil; (P.P.A.S.); (C.S.C.)
| | - Alexandre C. Serquiz
- Nutrition Course, University Center of Rio Grande do Norte, Natal 59.014-545, RN, Brazil;
| | - Izael S. Costa
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil; (A.J.F.C.A.); (J.L.C.d.Q.); (I.S.C.); (L.L.R.M.); (R.O.A.C.)
- Nutrition Course, Potiguar University, Natal 59.056-000, RN, Brazil
| | - Gerciane S. Oliveira
- Nutrition Postgraduate Program, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil; (G.S.O.); (A.F.T.G.)
| | - Ana F. T. Gomes
- Nutrition Postgraduate Program, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil; (G.S.O.); (A.F.T.G.)
| | - Lídia L. R. Matias
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil; (A.J.F.C.A.); (J.L.C.d.Q.); (I.S.C.); (L.L.R.M.); (R.O.A.C.)
| | - Rafael O. A. Costa
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil; (A.J.F.C.A.); (J.L.C.d.Q.); (I.S.C.); (L.L.R.M.); (R.O.A.C.)
| | - Thaís S. Passos
- Department of Nutrition, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil;
| | - Ana H. A. Morais
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil; (A.J.F.C.A.); (J.L.C.d.Q.); (I.S.C.); (L.L.R.M.); (R.O.A.C.)
- Nutrition Postgraduate Program, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil; (G.S.O.); (A.F.T.G.)
- Department of Nutrition, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59.078-970, RN, Brazil;
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Norouzpour M, Marandi SM, Ghanbarzadeh M, Zare Maivan A. The effect of combined exercises on the plasma levels of retinol-binding protein 4 and its relationship with insulin resistance and hepatic fat content in postmenopausal women with nonalcoholic fatty liver disease. J Sports Med Phys Fitness 2021; 62:684-690. [PMID: 33871240 DOI: 10.23736/s0022-4707.21.12233-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Evidence suggests increased serum levels of retinol-binding protein 4 (RBP4) in postmenopausal women with nonalcoholic fatty liver disease (NAFLD). This study investigated the effect of combined exercises on the plasma levels of RBP4 and its relationship with insulin resistance and hepatic fat content in these women. METHODS This quasi-experimental study randomly assigned 24 women with fatty liver and a mean age of 56.18±4.58 years to an experimental group and a control group. The experimental group participated in ten-week incremental endurance-resistance training as combined exercises three sessions a week. Fatty liver was diagnosed with ultrasound, RBP4 levels were measured and insulin resistance was determined using the Homeostatic Model Assessment for Insulin Resistance (HOMA-IR). Between-group data were analyzed using ANCOVA, within-group data using the dependent t-test and Wilcoxon test and relationships between RBP4 and variables using Spearman and Pearson correlation coefficients. RESULTS Ten weeks of combined exercises significantly decreased RBP4 levels (P=0.000), HOMA-IR (P=0.011) and hepatic fat levels (P=0.000) in the experimental group compared to in the controls. The posttest showed significant correlations between RBP4 levels and hepatic fat levels (P=0.002) and no correlations between RBP4 levels and insulin resistance (P=0.116). CONCLUSIONS Combined exercises significantly reduced serum levels of RBP4 in postmenopausal women with fatty liver. RBP4 was not related to insulin resistance and effects of RBP4 on hepatic fat regulation were independent of the effects of insulin resistance.
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Affiliation(s)
- Masoumeh Norouzpour
- Exercise Physiology Department, Sport Sciences Faculty, University of Isfahan, Isfahan, Iran
| | - Sayed M Marandi
- Exercise Physiology Department, Sport Sciences Faculty, University of Isfahan, Isfahan, Iran -
| | - Mohsen Ghanbarzadeh
- Exercise Physiology Department, Sport Sciences Faculty, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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Medhat D, El-Bana MA, El-Daly SM, Ashour MN, Elias TR, Mohamed RA, Yassen NN, Abdel-Monem MA, Hussein J. Influence of irisin on diet-induced metabolic syndrome in experimental rat model. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2021; 18:347-354. [PMID: 34187125 DOI: 10.1515/jcim-2020-0030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 06/29/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To evaluate the influence of irisin on the experimental paradigm of non-alcoholic fatty liver (NAFL) as a part of MetS cluster. METHODS Forty male albino rats were divided into four groups; normal control, standard diet + irisin, high carbohydrate and fat diet (HCHF), and HCHF + irisin. After the experimental period, levels of fasting blood sugar (FBS), insulin, lipid profile, kidney functions, salusin-alpha (Sal-α), adropin, and retinol-binding protein-4 (RBP-4) were evaluated. Peroxisome proliferator-activated receptor-gamma coactivator-1alpha (PGC-1α) expression in skeletal muscle was evaluated by quantitative real-time PCR. Aorta, liver, pancreas, and skeletal muscle tissue samples were prepared for histopathological examination. RESULTS Rats administrated HCHF showed elevated levels of FBS, lipid profile, kidney functions, RBP-4, and downregulation of PGC-1α expression along with a decline in levels of insulin, Sal-α, and adropin while administration of irisin significantly attenuated these levels. CONCLUSIONS Irisin as based therapy could emerge as a new line of treatment against MetS and its related diseases.
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Affiliation(s)
- Dalia Medhat
- Medical Biochemistry Department, National Research Centre, Doki, Giza, Egypt
| | - Mona A El-Bana
- Medical Biochemistry Department, National Research Centre, Doki, Giza, Egypt
| | - Sherien M El-Daly
- Medical Biochemistry Department, National Research Centre, Doki, Giza, Egypt
| | - Magdi N Ashour
- Medical Biochemistry Department, National Research Centre, Doki, Giza, Egypt
| | - Tahany R Elias
- Medical Biochemistry Department, National Research Centre, Doki, Giza, Egypt
| | - Rehab A Mohamed
- Medical Biochemistry Department, National Research Centre, Doki, Giza, Egypt
| | - Noha N Yassen
- Pathology Department, Medical Division, National Research Centre, Doki, Giza, Egypt
| | | | - Jihan Hussein
- Medical Biochemistry Department, National Research Centre, Doki, Giza, Egypt
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17
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Małecki P, Tracz J, Łuczak M, Figlerowicz M, Mazur-Melewska K, Służewski W, Mania A. Serum proteome assessment in nonalcoholic fatty liver disease in children: a preliminary study. Expert Rev Proteomics 2020; 17:623-632. [PMID: 32921203 DOI: 10.1080/14789450.2020.1810020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVES Nonalcoholic fatty disease (NAFLD) affects 3-10% of the pediatric population, making it the most common chronic liver disease among children. The aim of the study is to identify potential biomarkers enabling the diagnosis of NAFLD and monitoring the course of the disease. METHODS Proteome analysis was performed in a group of 30 patients (19 boys and 11 girls) in total, of whom 16 children had previously diagnosed NAFLD based on the abdominal ultrasound after excluding other diseases of this organ. RESULTS A total of 297 proteins have been identified. Thirty-seven proteins (responsible for inflammation, stress response, and regulation of this process) differentiating both experimental groups were identified. Up-regulated proteins included afamin, retinol-binding protein-4, complement components, and hemopexin; while serum protease inhibitors, clusterin, immunoglobulin chains, and vitamin D binding protein were found in the down-regulated group. The correlation between selected proteins and indicators of noninvasive assessment of liver fibrosis (APRI, FIB-4) as well as differences between the serum proteome of patients with normal weight, overweight, and obesity were also assessed. CONCLUSION The plasma protein profile is significantly altered in nonalcoholic liver disease in children and may prove to be a valuable source of biomarkers to evaluate the extent of liver disease.
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Affiliation(s)
- Paweł Małecki
- Department of Infectious Diseases, Poznan University of Medical Sciences , Poznan, Poland
| | - Joanna Tracz
- Institute of Bioorganic Chemistry Polish Academy of Sciences , Poznań, Poland
| | - Magdalena Łuczak
- Institute of Bioorganic Chemistry Polish Academy of Sciences , Poznań, Poland
| | - Magdalena Figlerowicz
- Department of Infectious Diseases, Poznan University of Medical Sciences , Poznan, Poland
| | | | - Wojciech Służewski
- Department of Infectious Diseases, Poznan University of Medical Sciences , Poznan, Poland
| | - Anna Mania
- Department of Infectious Diseases, Poznan University of Medical Sciences , Poznan, Poland
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Wang X, Chen X, Zhang H, Pang J, Lin J, Xu X, Yang L, Ma J, Ling W, Chen Y. Circulating retinol-binding protein 4 is associated with the development and regression of non-alcoholic fatty liver disease. DIABETES & METABOLISM 2020; 46:119-128. [DOI: 10.1016/j.diabet.2019.04.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/28/2019] [Accepted: 04/28/2019] [Indexed: 02/07/2023]
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Abstract
Because of the shortage of liver grafts available for transplantation, the restrictions on graft quality have been relaxed, and marginal grafts, such as steatotic livers, are now accepted. However, this policy change has not solved the problem, because steatotic liver grafts tolerate ischemia-reperfusion (I/R) injury poorly. Adipocytokines differentially modulate steatosis, inflammation, and fibrosis and are broadly present in hepatic resections and transplants. The potential use of adipocytokines as biomarkers of the severity of steatosis and liver damage to aid the identification of high-risk steatotic liver donors and to evaluate hepatic injury in the postoperative period are discussed. The hope of finding new therapeutic strategies aimed specifically at protecting steatotic livers undergoing surgery is a strong impetus for identifying the mechanisms responsible for hepatic failure after major surgical intervention. Hence, the most recently described roles of adipocytokines in steatotic livers subject to I/R injury are discussed, the conflicting results in the literature are summarized, and reasons are offered as to why strategic pharmacologic control of adipocytokines has yet to yield clinical benefits. After this, the next steps needed to transfer basic knowledge about adipocytokines into clinical practice to protect marginal livers subject to I/R injury are presented. Recent strategies based on adipocytokine regulation, which have shown efficacy in various pathologies, and hold promise for hepatic resection and transplantation are also outlined.
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Abstract
Much evidence has accumulated in the literature over the last fifteen years that indicates vitamin A has a role in metabolic disease prevention and causation. This literature proposes that vitamin A can affect obesity development and the development of obesity-related diseases including insulin resistance, type 2 diabetes, hepatic steatosis and steatohepatitis, and cardiovascular disease. Retinoic acid, the transcriptionally active form of vitamin A, accounts for many of the reported associations. However, a number of proteins involved in vitamin A metabolism, including retinol-binding protein 4 (RBP4) and aldehyde dehydrogenase 1A1 (ALDH1A1, alternatively known as retinaldehyde dehydrogenase 1 or RALDH1), have also been identified as being associated with metabolic disease. Some of the reported effects of these vitamin A-related proteins are proposed to be independent of their roles in assuring normal retinoic acid homeostasis. This review will consider both human observational data as well as published data from molecular studies undertaken in rodent models and in cells in culture. The primary focus of the review will be on the effects that vitamin A per se and proteins involved in vitamin A metabolism have on adipocytes, adipose tissue biology, and adipose-related disease, as well as on early stage liver disease, including non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH).
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Affiliation(s)
- William S Blaner
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York 10032.
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21
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Charkoftaki G, Wang Y, McAndrews M, Bruford EA, Thompson DC, Vasiliou V, Nebert DW. Update on the human and mouse lipocalin (LCN) gene family, including evidence the mouse Mup cluster is result of an "evolutionary bloom". Hum Genomics 2019; 13:11. [PMID: 30782214 PMCID: PMC6381713 DOI: 10.1186/s40246-019-0191-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 01/17/2019] [Indexed: 12/12/2022] Open
Abstract
Lipocalins (LCNs) are members of a family of evolutionarily conserved genes present in all kingdoms of life. There are 19 LCN-like genes in the human genome, and 45 Lcn-like genes in the mouse genome, which include 22 major urinary protein (Mup) genes. The Mup genes, plus 29 of 30 Mup-ps pseudogenes, are all located together on chromosome (Chr) 4; evidence points to an “evolutionary bloom” that resulted in this Mup cluster in mouse, syntenic to the human Chr 9q32 locus at which a single MUPP pseudogene is located. LCNs play important roles in physiological processes by binding and transporting small hydrophobic molecules —such as steroid hormones, odorants, retinoids, and lipids—in plasma and other body fluids. LCNs are extensively used in clinical practice as biochemical markers. LCN-like proteins (18–40 kDa) have the characteristic eight β-strands creating a barrel structure that houses the binding-site; LCNs are synthesized in the liver as well as various secretory tissues. In rodents, MUPs are involved in communication of information in urine-derived scent marks, serving as signatures of individual identity, or as kairomones (to elicit fear behavior). MUPs also participate in regulation of glucose and lipid metabolism via a mechanism not well understood. Although much has been learned about LCNs and MUPs in recent years, more research is necessary to allow better understanding of their physiological functions, as well as their involvement in clinical disorders.
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Affiliation(s)
- Georgia Charkoftaki
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT, 06520-8034, USA
| | - Yewei Wang
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT, 06520-8034, USA
| | - Monica McAndrews
- Mouse Genome Informatics, The Jackson Laboratory, 600 Main Street, Bar Harbor, ME, 04609, USA
| | - Elspeth A Bruford
- HUGO Gene Nomenclature Committee, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SD, UK
| | - David C Thompson
- Department of Clinical Pharmacy, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | - Vasilis Vasiliou
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, CT, 06520-8034, USA.
| | - Daniel W Nebert
- Department of Environmental Health and Center for Environmental Genetics; Department of Pediatrics and Molecular and Developmental Biology, Cincinnati Children's Research Center, University Cincinnati Medical Center, Cincinnati, OH, 45267, USA
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22
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Cantero I, Elorz M, Abete I, Marin BA, Herrero JI, Monreal JI, Benito A, Quiroga J, Martínez A, Huarte MP, Uriz-Otano JI, Tur JA, Kearney J, Martinez JA, Zulet MA. Ultrasound/Elastography techniques, lipidomic and blood markers compared to Magnetic Resonance Imaging in non-alcoholic fatty liver disease adults. Int J Med Sci 2019; 16:75-83. [PMID: 30662331 PMCID: PMC6332481 DOI: 10.7150/ijms.28044] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 10/18/2018] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION Non-alcoholic fatty liver disease (NAFLD) may progress to steatohepatitis, cirrhosis and complicated hepatocellular carcinoma with defined differential symptoms and manifestations. OBJECTIVE To evaluate the fatty liver status by several validated approaches and to compare imaging techniques, lipidomic and routine blood markers with magnetic resonance imaging in adults subjects with non-alcoholic fatty liver disease. MATERIALS AND METHODS A total of 127 overweight/obese with NAFLD, were parallelly assessed by Magnetic Resonance Imaging (MRI), ultrasonography, transient elastography and a validated metabolomic designed test to diagnose NAFLD in this cross-sectional study. Body composition (DXA), hepatic related biochemical measurements as well as the Fatty Liver Index (FLI) were evaluated. This study was registered as FLiO: Fatty Liver in Obesity study; NCT03183193. RESULTS The subjects with more severe liver disease were found to have worse metabolic parameters. Positive associations between MRI with inflammatory and insulin biomarkers were found. A linear regression model including ALT, RBP4 and HOMA-IR was able to explain 40.9% of the variability in fat content by MRI. In ROC analyses a combination panel formed of ALT, HOMA-IR and RBP4 followed by ultrasonography, ALT and metabolomic test showed the major predictive ability (77.3%, 74.6%, 74.3% and 71.1%, respectively) for liver fat content. CONCLUSIONS A panel combination including routine blood markers linked to insulin resistance showed highest associations with MRI considered as a gold standard for determining liver fat content. This combination of tests can facilitate the diagnosis of early stages of non-alcoholic liver disease thereby avoiding other invasive and expensive methods.
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Affiliation(s)
- Irene Cantero
- Department of Nutrition, Food Science and Physiology. Centre for Nutrition Research. School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - Mariana Elorz
- Department of Radiology, Clínica Universidad de Navarra, Pamplona, Spain
| | - Itziar Abete
- Department of Nutrition, Food Science and Physiology. Centre for Nutrition Research. School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition. Instituto de Salud Carlos III. Madrid, Spain
| | - Bertha Araceli Marin
- Department of Nutrition, Food Science and Physiology. Centre for Nutrition Research. School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - Jose Ignacio Herrero
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Liver Unit, Clinica Universidad de Navarra, Pamplona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Jose Ignacio Monreal
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Clinical Chemistry Department, Clínica Universidad de Navarra, Pamplona, Spain
| | - Alberto Benito
- Department of Radiology, Clínica Universidad de Navarra, Pamplona, Spain
| | - Jorge Quiroga
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Internal Medicine, Clínica Universidad de Navarra, Pamplona, Navarra, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Ana Martínez
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Mª Pilar Huarte
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Juan Isidro Uriz-Otano
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Josep Antoni Tur
- CIBERobn, Physiopathology of Obesity and Nutrition. Instituto de Salud Carlos III. Madrid, Spain.,Research Group on Community Nutrition and Oxidative Stress. University of Balearic Islands. Palma de Mallorca. Spain
| | - John Kearney
- School of Biological Sciences, Dublin Institute of Technology, Dublin, Republic of Ireland
| | - J Alfredo Martinez
- Department of Nutrition, Food Science and Physiology. Centre for Nutrition Research. School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition. Instituto de Salud Carlos III. Madrid, Spain.,Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,IMDEA FOOD. Madrid
| | - M Angeles Zulet
- Department of Nutrition, Food Science and Physiology. Centre for Nutrition Research. School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition. Instituto de Salud Carlos III. Madrid, Spain.,Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
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23
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Zhang J, Liu Z, Zhang X, Zhang L, Jin X. Association between urine retinol-binding protein levels and nonalcoholic fatty liver disease: A cross-sectional study in Chinese population. J Clin Lab Anal 2017; 32:e22359. [PMID: 29194759 DOI: 10.1002/jcla.22359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 10/23/2017] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE The prevalence of nonalcoholic fatty liver disease (NAFLD) has been rapidly increased, becoming a public health problem worldwide. Our objective was to investigate the association between urine retinol-binding protein (RBP) and NAFLD in a Chinese population and develop a multivariate logistic regression model for NAFLD prediction. METHODS A total of 317 NAFLD patients and 391 healthy controls were enrolled in this cross-sectional study based on inclusion and exclusion criteria, from whom fasting urine and blood were collected for further study. Urine RBP level and other parameters were measured and compared between NAFLD subjects and controls. RESULTS Urine RBP levels (expressed by RBP/creatinine ratio) in NAFLD patients were significantly higher than controls (median 133.1 mg/g vs 110.7 mg/g; P < .001). Urine RBP/creatinine ratio was verified as an independent factor for NAFLD prediction after adjustment in multivariate logistic regression. The area under curve (AUC) of receiver operating characteristic (ROC) was 0.889 with the 95% confidence interval from 0.867 to 0.912.With a cutoff point of 0.215, the sensitivity and specificity of urine RBP/creatinine ratio in NAFLD prediction were 81.1% and 84.5%, respectively. CONCLUSION Our results demonstrated that urine RBP/creatinine ratio was an independent risk factor for NAFLD while the predictive model for NAFLD diagnosis is noninvasive with high sensitivity and specificity.
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Affiliation(s)
- Juanwen Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zeyu Liu
- Department of Endocrinology, Sir Run Run Shaw Hospital Affiliated to School of Medicine, Zhejiang University, Hangzhou, China
| | - Xuyao Zhang
- Clinical Medicine, Hangzhou Normal University Qianjiang College, Hangzhou, China
| | - Li Zhang
- Kidney Disease Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xi Jin
- Department of Gastroenterology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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24
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Zhou Z, Chen H, Ju H, Sun M. Circulating retinol binding protein 4 levels in nonalcoholic fatty liver disease: a systematic review and meta-analysis. Lipids Health Dis 2017; 16:180. [PMID: 28931435 PMCID: PMC5607593 DOI: 10.1186/s12944-017-0566-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 09/07/2017] [Indexed: 01/02/2023] Open
Abstract
Background Retinol binding protein 4 (RBP4) is implicated in obesity, insulin resistance and type 2 diabetes mellitus that are closely associated with nonalcoholic fatty liver disease (NAFLD). However, recent investigations regarding circulating RBP4 levels in NAFLD are conflicting. This meta-analysis is to determine whether NAFLD, non-alcoholic steatohepatitis (NASH) and simple steatosis (SS) patients have altered RBP4 levels. Methods We performed a systematic search in PubMed, EMBASE and The Cochrane Library up until 18 March 2017, and 12 studies comprising a total of 4247 participants (2271 NAFLD patients and 1976 controls) were included in the meta-analysis. Results There were no significant differences of circulating RBP4 levels in the following comparisons: (1) NAFLD patients vs controls (standardized mean differences [SMD]: 0.08; 95% CI: −0.21, 0.38); (2) NASH patients vs controls (SMD: −0.49; 95% CI: −1.09, 0.12); (3) SS patients vs controls (SMD: −0.72; 95% CI: −1.64, 0.20) and (4) NASH vs SS patients (SMD: −0.04; 95% CI: −0.32, 0.24). The results remained essentially unchanged in the comparisons between NAFLD patients and controls after excluding single individual study or bariatric studies (n = 2). No significant publication bias was detected. However, there was significant heterogeneity among studies and the subgroup and meta-regression analyses did not find the potential sources. Conclusions Circulating RBP4 levels may not be associated with NAFLD. Further prospective cohort studies are required to confirm these findings. Electronic supplementary material The online version of this article (10.1186/s12944-017-0566-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Zhongwei Zhou
- Department of Clinical Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, No. 75 Juchang Road, Tinghu, Yancheng, Jiangsu, 224001, People's Republic of China
| | - Hongmei Chen
- Department of Clinical Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, No. 75 Juchang Road, Tinghu, Yancheng, Jiangsu, 224001, People's Republic of China
| | - Huixiang Ju
- Department of Clinical Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, No. 75 Juchang Road, Tinghu, Yancheng, Jiangsu, 224001, People's Republic of China
| | - Mingzhong Sun
- Department of Clinical Laboratory, Affiliated Yancheng Hospital, School of Medicine, Southeast University, No. 75 Juchang Road, Tinghu, Yancheng, Jiangsu, 224001, People's Republic of China.
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